calculate average for last 6 months for multiple columns to calculate last 6 months variance

[Anonymous]

Hello everyone,
Need help with the below requirement
I have to calculate last 6 months variance for multiple metrics at column level to showcase on different reports.
I have created average for last 6 months for one column using below function

{AVG of Transport Cost = CALCULATE(SUM(WC_ULLT_KPI_SUMM_D_F[TOT_SALES_TON]),DATESINPERIOD(CALENDAR(WC_ULLT_KPI_SUMM_D_F[REP_DATE],LASTDATE(Calendar(WC_ULLT_KPI_SUMM_D_F[REP_DATE]),-6,MONTH))/6))}  and I am able to create it for one column. If I apply the same formula for second measure column it is showing circular dependency error.

In the next step I need to calculate the variance where I  am using the below formula for it. 

EX: June month varianvce=(Average of 6months (TOT_SALES_TON) - June(TOT_SALES_TON))/Average of 6months(TOT_SALES_TON)

likewise I have to calculate for 20 columns is there any way to acheive it?

[dax]

Hi rakeshreddyp,

In your scenario, you said you want to to get last 6 month 's variance, right? If the month is not last 6 months, will it show blank  or 0? If possible, could you please inform me more detailed information(such as your sample and expecting output)? Then I will help you more correctly.

Please do mask sensitive data before uploading.

Thanks for your understanding and support.
Best Regards,
Zoe Zhi

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[Anonymous]

Hi Zoe Zhi,

Sorry for the late response. 

I need to calculate the variance % for last 6months if the month has last 6 months data  otherwise, It will be the variance of the available months.

EX:

          

 for the Transport cost variance:

In case if the previous months has no data available the variance should sum up to the previous available months 

Variance(March)=Avg(Transport cost (Jan,Feb))-Transport cost(mar))/Avg(Transport cost (Jan,Feb))/ Variance (mar)=Avg(10,20)-10/15=0.33=33%

in case if the data is available

Var(sep)=Avg(Transport cost (Mar, Apr,May, june,jul,Aug))-Transport cost(sep))/Avg(Transport cost (Mar,Apr,May, june,jul,Aug))

Var(sep)= Avg(10,30,40,50,10,30)-20/ Avg(10,30,40,50,10,30)= .29 =29%

I hope this time I put it in a understandable way:)

Thanks,

Rakesh